Keep in mind that the $625,000 pulled out is non-taxable because it technically a lone and actually has tax benefits.

This would reduce the capital basis for that individual in the LLC but will not be considered taxable income.

Very frustrating selling multiple homes a year with nothing but taxable events to pay on but maybe that's all it is. 

And at that point it is taxable with the tax being recognized as each payment comes in.

Once in a Solo401k IRA money can be transferred and converted into the Roth portion of the Solo401k.Your seed and crop analogy fails to grasp the fact that paying taxes upfront on a conversion to a Roth gives many multitudes greater returns than RE held in a taxable account or an IRA.Using a STVR as an example. 

Box 2a is "Taxable Amount".

The biggest differences will be the taxable situation.

we eventually refied after only 9 months with a significant noi increase through fannie becoming cash on cash plus a sizeable non taxable event along with 5 years i/o at a very low rate which allows for a healthy cash flow

I am retired, so at my taxable income level, most of it won't be taxable. 

Question is, if it’s a back-to-back loan arrangement, will the interest part of the repayment be taxable income to me?